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Large genomic introgression blocks of Phaseolus parvifolius Freytag bean into the common bean enhance the crossability between tepary and common beans

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Title Large genomic introgression blocks of Phaseolus parvifolius Freytag bean into the common bean enhance the crossability between tepary and common beans
 
Creator Barrera, Santos
Berny Mier y Teran, Jorge C.
Lobaton, Juan David
Escobar Pérez, Roosevelt Humberto
Gepts, Paul
Beebe, Stephen E.
Urrea, Carlos A.
 
Subject embryo preservation
haplotypes
gene editing
conservación de embriones
haplotipos
edición de genes
ecology
 
Description The production of the common bean (Phaseolus vulgaris L.), one of the most important sources of protein and minerals and one of the most consumed grain legumes globally, is highly affected by heat and drought constraints. In contrast, the tepary bean (Phaseolus acutifolius A. Gray), a common bean-related species, is adapted to hot and dry climates. Hybridization to introduce complex traits from the tepary bean into the common bean has been challenging, as embryo rescue is required. In this study, we report three novel interspecific lines that were obtained by crossing lines from prior common bean tepary bean hybridization with Phaseolus parvifolius Frey tag in order to increase the male gametic diversity to facilitate interspecific crosses. These interspecific lines enhanced the crossability of the common bean and tepary bean species while avoiding the embryo rescue process. Crossing these three interspecific lines with tepary beans resulted in 12-fold more hybrid plants than crossing traditional common beans with tepary beans. Whole-genome sequencing analysis of these three interspecific lines shows large introgressions of genomic regions corresponding to P. parvifolius on chromosomes that presumably contribute to reproductive barriers between both species. The development of these lines opens up the possibility of increasing the introgression of desirable tepary bean traits into the common bean to address constraints driven by climate change.
 
Date 2022-12
2023-01-17T15:13:47Z
2023-01-17T15:13:47Z
 
Type Journal Article
 
Identifier Barrera, S.; Berny Mier Y.Teran, J.C.; Lobaton, J.D.; Escobar, R.; Gepts, P.; Beebe, S.; Urrea, C.A. (2022) Large genomic introgression blocks of Phaseolus parvifolius Freytag bean into the common bean enhance the crossability between tepary and common beans. Plant Direct 6(12):e470 12 p. ISSN: 2475-4455
2475-4455
https://hdl.handle.net/10568/127311
https://doi.org/10.1002/pld3.470
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 12 p.
application/pdf
 
Publisher Wiley
 
Source Plant Direct